From a camera that needs a settings change to Windows itself. Since the photo gallery works, here's a link to launch that on connect.
Be aware that autolaunching is now considered a possible security threat. It's possible Microsoft was brow beaten and turned it off.
I run windows 8 and for some reason when I connect my Nikon d40x no window opens to download from camera.It worked at one point but no longer does. I can download in photo gallery app.This is ok,but would prefer downloading directly when connecting the camera.